Home / 209,561.67-289,187.07-118,912.23

Finding the Fourth Proportional to 209,561.67, 289,187.07 and 118,912.23

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Solution

The fourth proportional to 209,561.67, 289,187.07 and 118,912.23 is: 164,094.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,561.67 : 289,187.07 = 118,912.23 : x
  2. Step 2: Convert to fraction form
    209,561.67/289,187.07 = 118,912.23/x
  3. Step 3: Cross multiply
    209,561.67x = 289,187.07 × 118,912.23
  4. Step 4: Simplify right side
    209,561.67x = 34,387,879,380.87
  5. Step 5: Solve for x
    x = 34,387,879,380.87/209,561.67
  6. Step 6: Final answer
    x = 164,094.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.